Timebeat TimeCard Mini Gold Edition

£599.95 - £895.95
Bracket height: Full Height Bracket
Compute module: With CM4
Expansion module: With AI Smart Sensor
Regular price £895.95
Regular price Sale price £895.95
  • Integrate your Raspberry Pi CM4 projects without the cable chaos
  • Save space and time - no need for a clunky I/O board
  • Be the only one you know with a cool black and gold PCIe base board
  • Get enterprise grade technology trusted by banks, government, broadcasters and academia!
Availability: Low stock: 20 left
Regular price £895.95
Regular price Sale price £895.95

The only PCIe board for CM4's

With full compatibility with the Raspberry Pi CM4, the Timebeat base board saves, space, time and effort..... plus it looks cool!

No more running around to find a power lead!

No need to have bulky IO boards on your work top!

Reduce your cable nightmare with a fully integrated solution!

TimeCard mini Gold Edition is the industry-leading solution for synchronizing time across multiple devices in local and wide-scale settings. Adaptable and open-hardware based, the product guarantees complete interoperability and maximum clock sync security.  

The Gold edition provides an all-in-one, out-of-the-box solution for clock sync.

Included in every box:

Timebeat OCP-TAP TimeCard mini PCIe baseboard

Timebeat GNSS module LEA-M8F

Timebeat OCXO SiTIME expansion module SiT5721


CM4 unit - minimum spec 2GB Memory and 8GB Storage (devices may vary based on availability, for a specific spec please get in touch).

Timebeat Ai Smart Sensor expansion board.


The PCIe carrier board can be used to get NMEA (time, position, navigation) and 1PPS in any server and can also be used as a standard CM4 carrier board.

It presents two serial ports in the operating system (standard Linux kernel ok, no custom drivers required):

- 1x to the U-blox module on the Timecard Mini, and

- 1x to the CM4 serial console (if present).

Plus you've got access to the in-band ethernet port in the CM4, microSD card etc.

The uses are endless, but with our free Timebeat software which runs both on x86_64 and ARM you can build grandmasters and high-accuracy clock sync clients to your heart's content at prices never seen before.

The Timecard Mini is part of the Timecard ecosystem in production with some of the biggest hyper-scalers in the world today.

All modules support all GNSS constellations (GPS, Galileo, GLONASS, Beidou, QZSS, and SBAS) in either a single or multi-constellation configuration. 

The LEA-M8F supports market-leading 100ppb holdover and is the flagship product.

The platinum edition comes with the SiTIME SiT5721 for 5-10ppb holdover capabilities making the TImeCard mini one of the most cost-effective solutions for flexible, versatile, and reliable nanosecond synchronisation.

The SiTime SiT5721 is the industry’s smallest Stratum 3E OCXO with ±5 ppb frequency stability. You simply will not find better performance in a smaller footprint anywhere - it is the current benchmark in high-end clock miniaturisation.

This module can be disciplined using I2C and is fully compatible with the free Timebeat clock synchronisation software.

The expansion module has an independent power regulator and is engineered to provide the absolute best dynamic performance. Leveraging SiTime’s unique DualMEMS™ and TurboCompensation™ temperature sensing technology, the OCXO delivers the most stable timing in the presence of environmental stressors such as airflow, temperature perturbation, vibration, shock, and electromagnetic interference (EMI).


Be aware the AI smart Sensor is currently a Pre-order solution and will delay delivery of the whole unit.

Raspberry Pi CM4 Base Board Features:

Raspberry Pi CM4 Base board PCIe Format

1GbE RJ45 Interface

USB3.0 x2 (external)

USB2.0 x1 (internal)

mini HDMI

USB-C external x1

Raspberry Pi 40 PIN GPIO

100 pin connector for Raspberry Pi CM4

Compatible Modules:

SiTime OCXO SiT5711

SiTime OCXO SiT5721

AI Smart Sensor



GNSS Module MAX-M10

Compatible SoMs:

Raspberry Pi CM4

Base Board OnlyComplete editionGold editionPlatinum editionPlatinum+ edition
Base BoardIncludedIncludedIncludedIncludedIncluded
GNSS ModuleNot IncludedUblox LEA-M8SUblox LEA-M8FUblox LEA-M8FUblox LEA-M8F
OCXONot IncludedSiTime SiT5711SiTime SiT5721SiTime SiT5721SiTime SiT5721
Intel I225-T2Not IncludedNot IncludedNot IncludedIncludedNot Included
Timebeat Intel E810-XXVDA2Not IncludedNot IncludedNot IncludedNot IncludedIncluded
Raspberry Pi CM4OptionalOptionalOptionalOptionalOptional
SupportCommunityOn RequestOn RequestOn RequestOn Request
SMANot IncludedIncludedIncludedIncludedIncluded
I2C OCXO controlN/AN/AYesYesYes
AI Smart SensorOptionalOptionalOptionalOptionalOptional

Promotion cards

  • Make life easy for yourself

    Integrate your Raspberry Pi projects with your desktop or server equipment. Seamless integration of our PCIe base borads and TimeCard mini PTP grandmaster clock solutions

  • Reliable assistance

    Our support page has all the relevant guides to get you up and running in a flash. From handy install guides to detailed dashboard deployments, and if you're still stuck, log a ticket.

  • Be part of the community

    The TimeCard mini collection is a key pillar in the Open Time Project community. Get yours today and join the movement of making technology accessible and available for the users!

Time honoured solutions

built around you

  • Tech to suit your project

  • Every unit tested

  • Top performance

  • Free software available